公开(公告)号：JP2006073949A

公开(公告)日：2006-03-16

申请号：JP2004258670

申请日：2004-09-06

Applicant: Showa Denko Kk ,  昭和電工株式会社

Inventor： HIRATA MOTOYUKI ,  UTSUNOMIYA MASAHIDE

IPC: H05K9/00 ,  C08K3/00 ,  C08K5/00 ,  C08L63/00 ,  C08L101/08 ,  H01F1/00 ,  H01F1/26 ,  H01F1/37

Abstract: PROBLEM TO BE SOLVED: To provide an electromagnetic wave absorber which has a sufficient flame resistance, an electromagnetic wave absorbing characteristic, a flexibility and an excellent chemical resistance. SOLUTION: A flame resistance electromagnetic wave absorbing material composition contains (A) a compound having two pieces or more of carboxyl group and/or acid anhydride group thereof in one molecule, (B) a compound having two pieces or more epoxy group in one molecule, (C) a soft magnetic powder, and (D) a fire retarding material. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供具有足够的阻燃性，电磁波吸收特性，柔韧性和优异的耐化学性的电磁波吸收体。 解决方案：阻燃电磁波吸收材料组合物包含（A）在一个分子中具有两个或更多个羧基和/或酸酐基团的化合物，（B）具有两个或更多个环氧基的化合物 在一分子中，（C）软磁性粉末，（D）阻燃材料。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JPH10128573A

公开(公告)日：1998-05-19

申请号：JP30086396

申请日：1996-10-28

Applicant: SHOWA DENKO KK

Inventor： SAEDA SHIGERU ,  SAKURAI TETSURO ,  TAGUCHI ISAMU ,  UTSUNOMIYA MASAHIDE

IPC: B23K35/22 ,  B23K35/363 ,  C09J11/06 ,  C09J201/04

Abstract: PROBLEM TO BE SOLVED: To provide a solder paste in which the organic halide compound to be blended to improve the solder wettability is sufficiently decomposed under the reflow condition without generating any ionic halogen, the performance as the solder paste is kept, and further the solder wettability is kept in a excellent condition, and the reliability of the product is excellent for a long time even without any cleaning. SOLUTION: In the solder paste in which the organic halide compound is blended as the activator, the flux in which 0.005-2.0wt.% polymer containing at least one of polyethylene glycol, poly-N-vinyl acetamide and poly-acrylic acid having the complex forming ability to the metal is added to the total weight of the flux, is blended.

公开(公告)号：JPH02175095A

公开(公告)日：1990-07-06

申请号：JP32997788

申请日：1988-12-27

Applicant: SHOWA DENKO KK

Inventor： HARITA HARUHISA ,  UTSUNOMIYA MASAHIDE ,  SHOJI TAKASHI

IPC: B23K35/363 ,  B23K35/36

Abstract: PURPOSE:To prevent sagging and balling of solder by adding glyceride having the b. p. of a specific temp. or above at a specific ratio into a flux of the cream solder, the solder powder of which is spherical powder. CONSTITUTION:The solder powder is oxygenfree solder powder, for which the spherical powder having about =200 deg.C b. p. as the thixotropic agent, and kneading the mixture. The thixotropic property of the cream solder is lost at the time of reflow when the b. p. of the glyceride is =10%. The sagging and balling of the solder at the time of reflow are thus obviated.

公开(公告)号：JPH02175094A

公开(公告)日：1990-07-06

申请号：JP32997688

申请日：1988-12-27

Applicant: SHOWA DENKO KK

Inventor： HARITA HARUHISA ,  UTSUNOMIYA MASAHIDE ,  SHOJI TAKASHI

IPC: B23K35/363 ,  B23K35/36

Abstract: PURPOSE:To prevent balling at the time of reflow by adding a fatty acid amine compd. at a specific ratio into a flux of the cream solder, the solder powder of which is spherical powder. CONSTITUTION:The solder powder is oxygenfree solder powder, for which the spherical powder having about =24 hours after printing. The sufficient protection of the solder surface is not possible when content of the antioxidant is =5%. The balling is obviated at the time of reflow and the workability in a mounting line is improved.

公开(公告)号：JP2003334643A

公开(公告)日：2003-11-25

申请号：JP2002195404

申请日：2002-07-04

Applicant: Showa Denko Kk ,  昭和電工株式会社

Inventor： HASEGAWA HIROSHI ,  UTSUNOMIYA MASAHIDE

IPC: B22D13/10 ,  B22F1/00 ,  B22F3/00 ,  B22F9/08 ,  C21D6/00 ,  C22C38/00 ,  H01F1/053 ,  H01F1/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for raising the heat transfer rate of a cast lump from a casting mold surface to the inner wall surface of a casting mold when a rare earth alloy or particularly an alloy for an R-T-B magnet is manufactured by a centrifugal casting method and to thereby manufacture the alloy for the R-T-B magnet having microcrystalline grains which have not heretofore been. SOLUTION: The method for manufacturing a rare earth alloy by a centrifugal casting method comprises a step of mounting a film having a small thermal conductivity than that of a casting mold material on the inner wall surface of a cylindrical casting mold. The thermal conductivity of the film is 80 W/mK or less. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种当铸态模具表面向铸模内壁表面提高铸块的传热速率的方法，当稀土合金或特别是RTB磁体的合金为 通过离心铸造法制造，从而制造具有未经过微晶晶粒的RTB磁体的合金。 解决方案：通过离心铸造方法制造稀土合金的方法包括将具有小于铸模材料的导热性小的膜安装在圆柱形铸模的内壁表面上的步骤。 膜的导热率为80W / mK以下。 版权所有（C）2004，JPO

公开(公告)号：JP2003077717A

公开(公告)日：2003-03-14

申请号：JP2001266278

申请日：2001-09-03

Applicant: Showa Denko Kk ,  昭和電工株式会社

Inventor： UTSUNOMIYA MASAHIDE ,  HASEGAWA HIROSHI ,  ITO TADANAO

IPC: C22C38/00 ,  C22C38/08 ,  H01F1/053 ,  H01F1/057 ,  H01F1/08

CPC classification number: H01F1/0571

Abstract: PROBLEM TO BE SOLVED: To solve the problem that, as when shifting to a component side of R of low concentration in a R-T-B-based magnet alloy, a ratio that a R-rich phase is present is decreased, densification cannot be expected when sintered to a magnet, and further an improvement cannot be expected in coercive force. SOLUTION: In a rare-earth magnet alloy agglomeration, an R-T-B-based magnet alloy contains an element of a type or more of Nd, Pr and Dy having 11.8 to 15.2 atomic % in all and B of 5.6 to 7.9 atomic % (R is of a type out of rare-earth elements containing Y, T has Fe as a main component, and a part thereof can be replaced with Co, Ni, or the like). Still, in a state of being cast, an R-rich phase of length 100 μm or more is not found substantially in cross section. In a method for manufacturing the rare-earth magnet alloy agglomeration, a melt 31 is received by a rotator 5 and is scattered by rotation of the rotator, and the scattered melt is deposited and fixed 7 on an inner plane of a rotating cylindrical die 4 of which the inner plane has a recessed and/or projected unsmoothed surface.

Abstract translation: 要解决的问题为了解决当在RTB系磁铁合金中向低浓度的R的成分侧移动时，存在富R相的比例降低，当烧结时不能预期致密化 并且在矫顽力方面不能期待改善。 解决方案：在稀土磁体合金凝聚体中，RTB系磁铁合金含有Nd，Pr，Dy等级以上的元素全部为11.8〜15.2原子％，B为5.6〜7.9原子％（R为 是含有Y的稀土类元素的一种，T以Fe为主成分，其一部分可以被Co，Ni等取代）。 然而，在铸造状态下，基本上没有发现长度为100μm以上的富R相。 在稀土类磁铁合金凝聚体的制造方法中，熔融体31被旋转体5收纳，通过旋转体的旋转而散射，将散射的熔融物7沉积固定在旋转的圆筒状模具4的内侧面 其中内平面具有凹入和/或投影的未平滑表面。

公开(公告)号：JPH10109188A

公开(公告)日：1998-04-28

申请号：JP28010396

申请日：1996-10-01

Applicant: SHOWA DENKO KK

Inventor： SAEDA SHIGERU ,  SAKURAI TETSURO ,  TAGUCHI ISAMU ,  UTSUNOMIYA MASAHIDE

IPC: B23K35/363 ,  C08L33/02 ,  C08L39/00 ,  C08L71/00 ,  C08L71/02 ,  C08L101/00 ,  C08L101/02 ,  H05K3/34

Abstract: PROBLEM TO BE SOLVED: To obtain a solder paste for printed board holding the excellent performance for long term without developing solder ball even in the case of storing for long term by blending flux adding specific high molecular compound in specific wt. ratios. SOLUTION: The flux adding the high molecular compound having complex body forming capacity and at least decimer at 0.005-3.0wt.% to the flux wt., is blended to a metal constituting the solder. The high molecular compound has a functional group easily forming the metal complex body of amino group, imino group, hydroxyl group, ether group, pyridyl group, imidazole group, carboxyl group, thiol group, amide group, sulfo group, oxime group, hydroxam group, phosphate group, ketone group, or large ring ligand group such as porphyrin, etc. and further, contains at least one of polyethylene glycol, poly-N- vinylacetamide and polyacrylic acid.

公开(公告)号：JPH03151189A

公开(公告)日：1991-06-27

申请号：JP28770389

申请日：1989-11-04

Applicant: SHOWA DENKO KK

Inventor： UTSUNOMIYA MASAHIDE ,  HARITA YASUHISA ,  SHOJI TAKASHI

IPC: B23K35/363

Abstract: PURPOSE:To obtain products having high reliability without short circuiting by incorporating capric acid into a compsn. contg. powder solder, resin, solvent, etc., thereby constituting the cream soldier. CONSTITUTION:The cream solder is constituted by incorporating the capric acid into the compsn. contg. the powder solder, resin, solvent, etc. The solder for non-washing is constituted by adding 5 to 35wt.% capric acid as an activator into flux components. The cream solder for fine patterns are constituted by adding 20 to 35wt.% capric acid to flux components together with other activators. The workability and productivity are improved in this way.

公开(公告)号：JP2005252221A

公开(公告)日：2005-09-15

申请号：JP2004237356

申请日：2004-08-17

Applicant: Showa Denko Kk ,  昭和電工株式会社

Inventor： HIRATA MOTOYUKI ,  UTSUNOMIYA MASAHIDE

IPC: H05K9/00

Abstract: PROBLEM TO BE SOLVED: To provide an electromagnetic wave absorber which has high flexibility, chemical resistance, and strength with substantially non-halogen. SOLUTION: A composite is heated and cross-linked which contains (A) a compound having at least one or more carboxyl groups or a derivative thereof in a molecule, (B) an epoxy compound having two or more epoxy groups in a molecule, and (C) soft magnetic powder. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种具有高柔性，耐化学性和强度的电磁波吸收体，其基本上不含卤素。 解决方案：将复合物加热并交联，其包含（A）在分子中具有至少一个或多个羧基的化合物或其衍生物，（B）具有两个或更多个环氧基的环氧化合物 分子，（C）软磁粉末。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2003001389A

公开(公告)日：2003-01-07

申请号：JP2001182163

申请日：2001-06-15

Applicant: Showa Denko Kk ,  昭和電工株式会社

Inventor： UTSUNOMIYA MASAHIDE ,  YUI MASAAKI ,  ITO TADANAO ,  HIROSE YOICHI ,  OKADA MASUO

IPC: B22D13/02 ,  B22D13/10 ,  C22C1/00 ,  H01M8/04

CPC classification number: Y02E60/50

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for a Ti-Cr alloy with BCC structure which has low impurity, large capacity of hydrogen absorption and emission as well as ability for quenching solidification, in the manufacturing method for a hydrogen absorbing alloy whose main phase is a body-centered cubic structure(BCC structure) and capable to absorb and emit hydrogen. SOLUTION: The alloy containing Ti, Cr and one or more kinds of elements selected from V, Mo and W, is attached to a rotational axis R with which the alloy material is rotated together. An arc or plasma arc generating device is equipped to melt the rotating alloy material, and a rotating cylindrical mold is prepared around the material so that the rotating axis L of the mold makes an angle of inclination θ to the rotating axis R. Melted metal is solidified on the inside wall of the mold.

Abstract translation: 要解决的问题：为了提供一种具有BCC结构的具有低杂质，大的吸氢和发射能力以及淬火能力的具有BCC结构的Ti-Cr合金的制造方法，其主要的吸氢合金的制造方法 相是体心立方结构（BCC结构），能够吸收和释放氢。 解决方案：含有Ti，Cr和选自V，Mo和W的一种或多种元素的合金附着​​在合金材料一起旋转的旋转轴线R上。 电弧或等离子体电弧发生装置被装配以熔化旋转的合金材料，并且围绕材料制备旋转的圆柱形模具，使得模具的旋转轴线L与旋转轴线R成倾角θ。熔融金属是 在模具的内壁上固化。